Question

Work out the size of each unknown angle in these diagrams.
Give reasons for your answers.
1​

Answer 1

Answer:

a=180-62-45

a=180-107

a=63°

Answer 2

Answer:

according to angle sum property we know,the sum of all angles is = 180°.

therefore,<a= 180° -(62+45).

so,<a= 180°- 107°.

so, <a= 73°.

Step-by-step explanation:

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